What part of building a Roblox world still feels unnecessarily manual?

I’m building WorldLoop around a question I’ve kept running into while working with procedural generation: how much of world building can actually be automated without taking control away from the creator?

We started with procedural architecture, then added structural interiors, terrain, caves, water, browser previews and delivery into Roblox Studio.

The interesting part for me isn’t generating a finished image of a world, it’s generating something structurally useful that you can keep editing afterward.

I’d be interested to hear from Roblox creators or people working with procedural 3D: which part of building environments still feels disproportionately repetitive or slow?

WorldLoop launches here tomorrow, but I’m more interested in the answers to that question than in promoting the launch itself.